try fix CI

Author: Taowyoo

.travis.yml

@@ -8,13 +8,14 @@ branches:
     - master
 language: rust
 os: linux
-dist: xenial
+dist: focal
 addons:
   apt:
+    sources:
+    - sourceline: "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-11 main"
+      key_url: "https://apt.llvm.org/llvm-snapshot.gpg.key"
     packages:
-    - llvm-3.8-dev
-    - libclang-3.8-dev
-    - clang-3.8
+    - clang-11
     - cmake
 rust:
    - stable
@@ -29,6 +30,5 @@ env:
     # re-pinned whenever core_io is updated to the latest nightly.
     - CORE_IO_NIGHTLY=nightly-2019-07-01
     - SGX_NIGHTLY=nightly-2019-10-28
-    - LLVM_CONFIG_PATH=llvm-config-3.8
 script:
   - ./ct.sh

mbedtls/src/bignum/mod.rs

@@ -173,7 +173,7 @@ impl Mpi {
             mpi_write_string(
                 &self.inner,
                 radix,
-                buf.as_mut_ptr() as *mut i8,
+                buf.as_mut_ptr() as *mut _,
                 buf.len(),
                 &mut olen,
             )

mbedtls/src/pk/mod.rs

@@ -129,7 +129,7 @@ const CUSTOM_PK_INFO: pk_info_t = {
         sign_func: None,
         verify_func: None,
         get_bitlen: None,
-        name: b"\0" as *const u8 as *const i8,
+        name: b"\0" as *const u8 as *const _,
         ctx_alloc_func: Some(alloc_custom_pk_ctx),
         ctx_free_func: Some(free_custom_pk_ctx),
     }

mbedtls/src/pkcs12/mod.rs

@@ -356,6 +356,7 @@ impl BERDecodable for EncryptedData {
 
 // EncryptedContentInfo from PKCS7 see RFC 2315 section 10.1
 #[derive(Debug, Clone)]
+#[allow(dead_code)]
 struct EncryptedContentInfo {
     content_type: ObjectIdentifier,
     encryption_algo: AlgorithmIdentifier,
@@ -458,6 +459,7 @@ enum Pkcs12BagSet {
 }
 
 #[derive(Debug, Clone)]
+#[allow(dead_code)]
 struct SafeBag {
     bag_id: ObjectIdentifier,
     bag_value: Pkcs12BagSet,